Integer overflow in Envoyproxy Envoy

CVE-2024-32975

Envoy is a cloud-native, open source edge and service proxy. There is a crash at `QuicheDataReader::PeekVarInt62Length()`. It is caused by integer underflow in the `QuicStreamSequencerBuffer::PeekRegion()` implementation.

EPSS: 0.007 (49.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

  • Envoyproxy Envoy — versions >= 1.30.0, <= 11.30.1, >= 1.29.0, <= 1.29.4, >= 1.28.0, <= 1.28.3

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2024-32975?
CVE-2024-32975 is a medium-severity vulnerability in Envoyproxy Envoy, classified under Integer Underflow. CVSS score: 5.9/10. Published 2024-06-04.
How severe is CVE-2024-32975?
Medium severity. CVSS v3 base score is 5.9 out of 10.